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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.

Dimensions for gathering data Dimensions for gathering data
Reconstructed Australopithecus afarensis spine shows that species walked upright. Reconstructed Australopithecus afarensis spine shows that species walked upright.
Fossil remains of anatomically modern humans from the Czech Republic and from China (center crania) Fossil remains of anatomically modern humans from the Czech Republic and from China (center crania)
Human Activities and the Environment Human Activities and the Environment
Humulin, a recombinant form of human insulin Humulin, a recombinant form of human insulin
Video: Definition of heart rate

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